go.mod: update to latest safehtml

Update github.com/google/safehtml to a version where it supports
embedding.

For golang/go#48410

Change-Id: I4efd6d270b38b0cc00647b3c1e87e46e5e0aab21
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/359394
Trust: Jonathan Amsterdam <jba@google.com>
Run-TryBot: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Julie Qiu <julie@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>
diff --git a/go.mod b/go.mod
index 482009d..8865a5a 100644
--- a/go.mod
+++ b/go.mod
@@ -27,7 +27,7 @@
 	github.com/google/go-cmp v0.5.4
 	github.com/google/go-replayers/httpreplay v0.1.0
 	github.com/google/licensecheck v0.3.1
-	github.com/google/safehtml v0.0.2
+	github.com/google/safehtml v0.0.3-0.20211026203422-d6f0e11a5516
 	github.com/hashicorp/golang-lru v0.5.1
 	github.com/jackc/pgconn v1.9.0
 	github.com/jackc/pgx/v4 v4.12.0
diff --git a/go.sum b/go.sum
index e0c26ea..b3f3947 100644
--- a/go.sum
+++ b/go.sum
@@ -290,6 +290,8 @@
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/google/safehtml v0.0.2 h1:ZOt2VXg4x24bW0m2jtzAOkhoXV0iM8vNKc0paByCZqM=
 github.com/google/safehtml v0.0.2/go.mod h1:L4KWwDsUJdECRAEpZoBn3O64bQaywRscowZjJAzjHnU=
+github.com/google/safehtml v0.0.3-0.20211026203422-d6f0e11a5516 h1:pSEdbeokt55L2hwtWo6A2k7u5SG08rmw0LhWEyrdWgk=
+github.com/google/safehtml v0.0.3-0.20211026203422-d6f0e11a5516/go.mod h1:L4KWwDsUJdECRAEpZoBn3O64bQaywRscowZjJAzjHnU=
 github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
 github.com/googleapis/gax-go/v2 v2.0.5 h1:sjZBwGj9Jlw33ImPtvFviGYvseOtDM7hkSKB7+Tv3SM=